from django import forms
from django.core.exceptions import ValidationError
from web.forms.bootstrap import BootStapForm
from web import models
from utils.tencent.cos import check_file
class FolderModelForm(BootStapForm,forms.ModelForm):
    class Meta:
        model = models.FileRepository
        fields = ['name']
    def __init__(self,request,parent_object,*args,**kwargs):
        super().__init__(*args,**kwargs)
        self.request = request
        self.parent_object = parent_object

    def clean_name(self):
        name = self.cleaned_data['name']

        # 数据库判断 当前目录下此文件夹是否存在
        queryset = models.FileRepository.objects.filter(file_type=2, name=name, project=self.request.tracer.project)
        if self.parent_object:
            exists = queryset.filter(parent=self.parent_object).exists()
        else:
            exists = queryset.filter(parent__isnull=True).exists()
        if exists:
            raise ValidationError('文件夹已存在')
        return name


class FileModelForm(forms.ModelForm):
    etag = forms.CharField(label='ETag')
    class Meta:
        model = models.FileRepository
        exclude = ['project','file_type','update_user','update_datetime']
    def __init__(self,request,*args,**kwargs):
        super().__init__(*args,**kwargs)
        self.request = request
    def clean_file_path(self):
        return "https://{}".format(self.cleaned_data['file_path'])
    # """
    # def clean(self):
    #     key = self.cleaned_data['key']
    #     etag = self.cleaned_data['etag']
    #     size = self.cleaned_data['file_size']
    #     if not key or not etag:
    #         return self.cleaned_data
    #     # 向cos校验文件是否合法
    #     # sdk的功能
    #     from qcloud_cos.cos_exception import CosServiceError
    #     try:
    #         result = check_file(self.request.tracer.project.bucket,self.request.tracer.project.region,key
    #         )
    #     except CosServiceError as e:
    #         self.add_error(key,'文件不存在')
    #         return self.cleaned_data
    #     cos_etag = result.get('ETag')
    #     if etag != cos_etag:
    #         self.add_error('etag','ETag错误')
    #     cos_length = result.get('Content_Length')
    #     if int(cos_length) != size:
    #         self.add_error('size', '文件大小错误')
    #     return self.cleaned_data
    # """